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shanghai metal testing instrument co., ltd. specializes in the research, development, production and sales of metal testing equipment such as metal testing machines, metal testing instruments, and food metal testing instruments, helping customers solve the problem of metal impurities detection.
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shanghai gongfu testing equipment co., ltd. specializes in the research, development, production and sales of metal testing equipment such as metal testing machines, metal testing instruments, and food metal testing instruments, helping customers solve the problem of metal impurities detection.
www.shgcj17.com movie video 2025-03-21
